KR100820087B1 - The manufacturing system of block figuration composite using fly-ash - Google Patents

Abstract

A block forming composition manufacturing device using fly-ash is provided to recycle the waste material by mixing fly-ash and clay, and to equalize the quality of bricks by supplying the fixed quantity of fly-ash mixed with clay. A block forming composition manufacturing device using fly-ash sorts out and crushes fly-ash supplied from a silo tank(100) and clay supplied from a feeder(500), in a stone sorter(600) and a crusher(700), kneads fly-ash and clay in a mixer(800), supplies raw material by using a volumetric feeder(300), and molds blocks by a dust collector(400) collecting dust generated during a raw material transfer process. The fixed quantity of fly-ash discharged from the silo tank is poured from the volumetric feeder to the mixer by installing the volumetric feeder between the silo tank and the mixer. The dust collector is installed at the upper part of the mixer to collect dust generated from the volumetric feeder and the mixer. The dust collector and the volumetric feeder are connected by a first dust collecting hose(402).

Description

The manufacturing system of a block molding composition using a fly ash {The manufacturing system of block figuration composite using fly-ash.}

1 is a system schematic diagram of a conventional brick raw material supply device

2 is a system flow diagram of a brick raw material supply apparatus according to an embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

100: cyro tank 200: hopper

300: fixed amount feeder 400: dust collector

401: blower 402: first dust collecting hose

500: Feeder 600: Separators

700: grinder 800: kneader

In the present invention, in the manufacture of bricks by molding and drying brick moldings, fly ash and clay generated from coal combustion products used in thermal power plants or industrial wastes in the process of smelting steel in a steel making plant Using a mixture of the mixture to form a brick of a certain size to process the industrial waste to be recycled, to reduce the 50 ~ 70% fuel consumption in the firing process to ensure that the fly ash is quantitatively supplied by the metering feeder By uniformizing the quality of bricks manufactured, collecting dust generated during fly ash supply, reducing the pressure load on the feeder, and solving all the problems caused by environmental pollution, raw material supply and waste disposal. Fly to prevent environmental pollution and promote health of field workers It relates to an apparatus for manufacturing a molded block composition using a rest.

Fly ash refers to ash collected from the flue gas of a boiler that burns pulverized coal (coal ash). When coal is pulverized in a coal-fired power plant and injected into the furnace at high speed with hot air Most of the minerals contained in the coal are instantaneously burned in the suspended state in the temperature range of 1300 ~ 1700 ℃ above the melting point. At this time, they are collected in the dust collector after combustion. Anthracite produces 15 ~ 26% of coal ash. It can be divided into a lump-type bottom ash that is cooled by water falling on the bottom of the boiler and a cinder-ash that collects in a hopper at the bottom of an air blower or an air preheater. It is generated from coal-fired power plants, and recycling is used in cement, civil engineering, construction, and agriculture and fisheries. A fly ash cement crushed and mixed with the cement is being utilized as useful in industry standards that have been established in the KS 5211.

Such fly ash is applied to artificial aggregates and lightweight aggregates in foreign countries and is commercialized in civil engineering fields such as road pavement, landfill, fill grout, etc., but the recycling range is limited in Korea, resulting in a lot of grievances in waste disposal.

Moreover, fly ash discharged through bituminous coal can be consumed because it is easy to refine and can be mixed with 70% of cement.Fly ash generated from power plant using anthracite coal is different from the quality of bituminous coal. Since this low and conventional refining technology is not easy to commercialize, only a portion of fly ash is recycled in the domestic thermal power plant, which mainly uses anthracite, so that it is difficult to dispose of waste.

Blast furnace slag is a slag that is produced when pig iron is made from iron ore in a blast furnace. It collects impurities other than iron, and it produces 500 to 1,000 kg per tonne of pig iron. Glass wool, special fertilizer, It is widely used for blast furnace cement and blast furnace brick.

In general, steel making dust generated in an electric furnace is composed of a large amount of iron oxide (FeO), zinc oxide (ZnO), silica (SiO2) and various other metallic inorganic materials, such as Pb, Cr, Cd, Cu, etc. Because it contains harmful metals, it is classified as designated waste in environmental regulations.

Such waste dust is currently used as a cement material, mixed with quicklime, slaked lime, and chemicals, and solidified and disposed of in the landfill, and recently, recycled as a filler of asphalt concrete, oil prices such as ZnO, etc. In order to recover and recycle the metal, a method such as plasma method or rotary kiln method has been proposed.

However, when the dust is used as a component material of cement, zinc oxide (ZnO) contained in the dust may be impurity, resulting in a decrease in strength and air pollution during the manufacturing process. In addition, when the landfill is increased, landfill costs and excessive landfill disposal costs are enormous, leading not only to economic losses, but also to secondary secondary pollution. In addition, the treatment method by the plasma method or the rotary kiln method, which is a valuable metal recovery method, requires high technology and enormous treatment facility facilities, and is composed of many process treatments. There is no problem.

Increasing the utilization of industrial wastes such as fly ash and blast furnace slag can have a great effect on reducing environmental load and supplying scarce raw materials at low cost.

A preferred method for recycling fly ash can be used as a clay admixture for building bricks. Fly ash is a combustion product that contains a large amount of unburned components on its own, so when it is used as a clay mixture for bricks, it forms a reducing atmosphere and an oxidizing atmosphere in the process of firing a brick molding to the extent that the unburned components are burned. Therefore, it is possible to manufacture high-quality building bricks by displaying various colors, and it is possible to save 50 ~ 70% of fuel in the firing process because unburned components are used as fuel that is completely burned during the firing process. have.

This fuel-saving effect is to use the unburned components included in the fly ash, and even if there is no pretreatment process for recycling the fly ash, the pretreatment process is automatically performed in the firing process to facilitate waste treatment. have.

In the conventional method of manufacturing bricks using fly ash, the fly ash is sorted and separated to be pelletized and stabilized, or processed into dry dust and mixed with clay and silica sand to prepare clay bricks. During the feeding process, 5 ~ 15% of the pelletized steelmaking dust and dry steelmaking dust, which are the raw materials, are directly input through the feeder, and 5-15% of the stabilized steelmaking dust is directly input to the kneader moving to the kneader or kneader. Was.

Figure 1 shows an example of a schematic diagram of a brick raw material supply device using a conventional fly ash.

Referring to this figure, an apparatus for enabling the above-described manufacturing method comprises: a cyclo tank (1); Feeder 2; Granuler (3); Grinder 4; Kneader 5; Metering feeder 6; A molding machine 7;

That is, a dust collector 10 for collecting dust scattered during supply, a level gauge 11 for confirming the stored amount, an air pulse 12 for shaking off the dust collected, and a vibrator for easily discharging the fly ash ( 13) a cyclo tank (1) in which a rotary ash (14) and a crushing mill (15) are installed to store a fly ash carried by a bulk trailer; A feeder 2 for supplying clay; Separators (3) for sorting the gravel of a predetermined size or more contained in the clay fed to the conveyor while receiving the fly ash from the cyclo tank (1); A grinder (4) for grinding clay and silica sand mixed with fly ash in the separator (3); A kneader (5) supplied with water to knead the clay mixture ground in the grinder (4) together with water; A fixed-quantity feeder (6) for constantly supplying the clay mixture discharged from the kneader (5); A molding machine (7) for molding the clay mixture kneaded in the metering feeder (6) into bricks of a predetermined size; And it is composed of a conveying means, such as a screw conveyor, or a belt conveyor is installed between each device for transferring the raw material.

In general, bricks are used not only for interior use but also for exterior use and are exposed to the naked eye. In particular, bricks manufactured using fly ash have a difference in the beauty and color of the surface according to the mixing ratio of fly ash mixed with clay. This is determined.

This mixing ratio is able to supply the raw material by a fixed-quantity feeder, in the conventional apparatus for feeding the clay mixture in the process of transferring the clay mixture mixed with clay and fly ash to the molding machine (7) By installing (6), the mixing ratio of the fly ash mixed with the clay was not adjusted to the intended ratio and was not mixed.

And the cyclo tank (1) is provided with a dust collector 10 for removing dust generated when the fly ash is transported from the bulk trailer, but fly ash and clay discharged from the cyclo tank (1) Since there is no means for preventing or removing dust generated during the mixing process, a phenomenon in which dust of fly ash and clay of clay are severely generated in a raw material mixing process for brick forming is actually present.

 That is, when discharging the fly ash stored in the cyclo tank 1, the appropriate amount of dust is passed through the rotary 14 to the crushing mill 15 to be crushed, and the separator 3 is carried out by a conveying means such as a screw conveyor. Large amounts of dust are generated during the transfer to the furnace.

Therefore, according to the conventional apparatus, there is a problem in that the product quality cannot be uniformized under various conditions and the secondary environmental pollution is increased.

In addition, when the discharge pressure of the cyclo tank 1 is increased while the system is running, the internal pressure of the metering feeder 4 is increased. Amount is discharged, but there is a problem in that the conventional system does not provide a means for correcting or balancing the pressure, so that the quantitative supply efficiency is lowered.

The present invention is to recycle the unburned components of fly ash in the firing process while solving the problems of raw material supply and environmental pollution and waste disposal by recycling the waste ash fly ash as raw material of clay brick. It is an object of the present invention to provide an apparatus for producing a block molding composition using a fly ash, which can be used as an energy saving.

Another object of the present invention is to prevent the pressure load from the metering feeder by supplying a quantitative feeder by preventing the diffusion of dust while the fly ash stored in the cyclo tank is transported, thereby preventing the pressure from naturally rising. It is to provide an apparatus for producing a block molding composition using a fly ash capable of quantitatively supplying the mixing ratio of the fly ash mixed in the clay to realize high quality of the finished product.

Another object of the present invention is to improve the environment of the brick manufacturing process using the fly ash, so that the dust is not diffused during the fly ash stored in the cyclo tank secondary environmental pollution according to the treatment of industrial waste It is to provide an apparatus for producing a block molding composition using a fly ash that can prevent the.

The present invention for achieving the intended purpose of the present invention is the fly ash supplied from the cyclo tank having a well-known structure, and the clay supplied from the conveyor is selectively pulverized in a kneader and grinder, kneaded in a kneader and then discharged to form In forming the brick raw material supply device, a metering feeder is installed between the cyclo tank and the kneader, and the fly ash discharged from the cyclo tank is metered into the kneader from the metering feeder, and the metering feeder and the kneader Characterized in that it comprises a dust collecting means for collecting dust generated from.

The dust collecting means has a dust collector installed on the upper kneader, the dust collector and the fixed-quantity feeder is connected to the first dust collecting hose to collect the dust generated in the fly ash at the initial stage of the transfer to the dust collecting device and at the same time It is possible to lower the internal pressure.

The dust collecting means may further include a second dust collecting hose branched from the outlet side of the cyclo tank and connected to the dust collecting device.

The present invention configured as described above is driven in consideration of the amount of clay transferred to the conveyor by the fly ash fed from the cyclo tank is fed to the metering feeder through the hopper and then fed into the clay supplied to the separator, grinder and kneader and kneaded. The fly ash is fed by the metering feeder to provide a homogeneous brick molding.

The fly ash dust generated from the cyclo tank is introduced into the quantitative feeder through the dust collecting hose connecting the hopper and the quantitative feeder, and the fly ash dust generated from the hopper and the quantitative feeder itself is blower. It is filtered through the dust collection device by the suction part pressure of the, and only the remaining air is released into the atmosphere to prevent the pressure load of the metering supply due to dust, to prevent environmental pollution and improve the working environment of the workplace.

Such features and advantages of the present invention will be described more specifically and clearly by the embodiments described by the accompanying drawings.

Next, an embodiment of the present invention will be described.

Figure 2 shows a schematic diagram of a brick raw material supply apparatus according to an embodiment of the present invention.

Brick raw material supply apparatus of the present invention, as referred to in this figure is a cyclo tank 100, hopper 200, metering feeder 300, dust collector 400, clay feeder 500, segregator 600 , A grinder 700, and a kneader 800.

The cyclo tank 100 is a dust collecting device 101 for collecting dust scattered in the process of supplying the fly ash, which is transported to a bulk trailer (not shown), as the configuration is known, the fly ash is stored Level gauge 102 for checking the, the air pulse 103 to shake off the dust collected, the vibrator 104 for easily discharging the fly ash, the rotary 105 for discharging the fly ash to the metering feeder 200 ) And a crushing mill 106 are provided.

The hopper 200 serves as a medium for connecting the cyclo tank 100 and the metering feeder 300 to adjust the function so that an excessive amount of fly ash is not supplied from the cyclo tank 100 to the metering feeder 300. do.

As the hopper 200 is installed, the first screw conveyor SC1 and the second screw conveyor SC2 have two stages for transferring the fly ash between the cyclo tank 100 and the metering feeder 300. Separately, the cyclo tank 100 and the hopper 200 are connected to the first screw conveyor (SC1), the hopper 200 and the metering feeder (300) is connected to the second screw conveyor (SC2). .

The conveying means may be a belt conveyor, but it is preferable to apply a screw conveyor formed in the cylindrical tube to prevent dust generated from the fly ash from being diffused into the atmosphere and to be easily collected by the dust collector 400. .

The metering feeder 300 allows fly ash and clay to be mixed at an optimal mixing ratio by quantitatively supplying fly ash discharged from the cyclo tank 100 in consideration of clay transferred from the feeder 500. A dust collector 400 for collecting dust generated from the ash and correcting the pressure is installed.

The dust collector 400 is installed in a known configuration including a blower 401, and is installed on the kneader 800 to collect dust generated from the kneader 800, and at the same time, the fixed quantity feeder ( In order to discharge dust and high pressure generated in the interior of the 300, a dust collecting hose 402 connected to the metering feeder 300 at right angles is installed.

In addition, the hopper 200 and the quantitative feeder 300 are connected to another second dust collecting hose 403 in order to collect dust generated in the fly ash conveyed through the hopper 200.

The feeder 500 is composed of a known structure consisting of a hopper 501, a drive device 502, a small belt conveyor 503, and transfers the supplied clay to the segregator 600 through the first belt conveyor BC1. Let's do it.

Separator 600 is composed of a known structure that is selected in the clay or stone bonded to the specified size or more than the inappropriate stone and the size contained in the clay supplied to the first belt conveyor (BC1) second belt conveyor ( BC2) is discharged to the grinder 700.

The grinder 700 grinds the stone included in the clay transferred from the separator 600 into a size of 1 to 5 mm, which is suitable for brick production, and then to the kneader 800 through the third belt conveyor BC3. do.

The kneader 800 is 15 to 20% of moisture suitable for forming clay bricks by the water supplied to the water supply pipe 801, the clay and the fly ash conveyed from the metering feeder 300 is supplied to the water supply pipe 801 Are mixed and then discharged.

The clay brick material discharged from the kneader 800 is transferred to a known molding machine, molded into a brick molding having a predetermined size and shape, and then finished through a calcination process.

According to the present invention constituted as described above, the fly ash supplied from the cyclo tank 100 is introduced into the kneader 800 by the metering feeder 300 to form an optimal mixing ratio with the clay transferred from the grinder 700. It becomes possible.

In addition, when the dust collector 400 is driven, the dust generated in the process of the fly ash is transferred to the fixed-quantity feeder 300 through the hopper 200 by the suction part pressure of the blower 401 to the first dust collecting hose 402. It is transferred to the quantitative feeder 300 through the fly ash dust generated in the quantitative feeder 300 is filtered in the dust collector 400.

In addition, the internal pressure that can be gradually increased in the metering feeder 300 is discharged into the atmosphere through the first dust collecting hose 402, the dust collector 400, and the blower 401, so that the pressure is always balanced. There is no fear that the discharge will not be possible, and dust is collected during the discharge process, and there is no fear of environmental pollution.

According to the present invention, by mixing the industrial ash fly ash and clay to recycle the waste and to produce a fuel-saving brick, while supplying a fixed quantity of fly ash mixed with the clay to uniform the quality of the brick produced, fly ash is By collecting the dust generated in the process of supplying and balancing the pressure, it is possible to maintain the performance of the quantitative feeder smoothly in the long term, and to solve the problems caused by the supply and demand of raw materials and waste disposal. It is effective to prevent safety disasters.

Claims (2)

The fly ash supplied from the tank with the well-known structure and the clay supplied from the feeder are sorted and pulverized in the separator and grinder, kneaded in the kneader and then discharged, and the raw material is quantitatively supplied using a fixed-quantity feeder. In forming a well-known block molding composition manufacturing apparatus which has a dust collecting apparatus for collecting the distribution which arises in the process of conveying, and shape | molds a block, The fly ash discharged from the cyclo tank 100 by installing the metered feeder 300 between the cyclo tank 100 and the kneader 800 is metered into the kneader 800 from the metered feeder 300, In order to collect dust generated from the metering feeder 300 and the kneader 800, a dust collector 400 is installed on the kneader 800, the dust collector 400 and the metering feeder 300 An apparatus for producing a block molding composition using a fly ash, characterized in that connected to the first dust collecting hose (402). delete

Images